Recently, we have discovered that criminals falsely claimed to be WIN SOURCE to commit fraud.
The shortage of electronic components in the market is seen by scammers as a prime opportunity to catch manufacturers and other consumers with actual needs off guard.
Please note that the only official website & email suffix are
WIN SOURCE does not have any other Company Name or Website.



SIFIRST TECHNOLOGIES NANHAI LIMITED was founded in 2009 and its headquarters is located in Foshan City. SIFIRST TECHNOLOGIES NANHAI LIMITED is committed to the development and sale of high-performance high-quality green power, digital power, lighting power chips in three major areas, the product power range covers 0.5W ~ 500W power range AC/DC applications. SF59XX series, SF60XX series, SF67XX series are the main product series
Headquarters Taiwan, Province of China
SIC Code 36,367
NAICS Code 33,334